Analysis dictionary learning based on Nesterov's gradient with application to SAR image despeckling

@article{Dong2014AnalysisDL,
  title={Analysis dictionary learning based on Nesterov's gradient with application to SAR image despeckling},
  author={Jing Dong and Wenwu Wang},
  journal={2014 6th International Symposium on Communications, Control and Signal Processing (ISCCSP)},
  year={2014},
  pages={501-504}
}
We focus on the dictionary learning problem for the analysis model. A simple but effective algorithm based on Nesterov's gradient is proposed. This algorithm assumes that the analysis dictionary contains unit ℓ2 norm atoms and trains the dictionary iteratively with Nesterov's gradient. We show that our proposed algorithm is able to learn the dictionary… CONTINUE READING